长期生物测试得出的是亚致死效果，例如在较长时期内生物体生长或繁殖上的变化。

Chronic bioassay tests indicate sublethal effects, such as changes in growth or reproduction of the organism over a longer period of time.

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目的建立犬胸腔枪弹伤致伤模型，探讨早期致死原因和早期救治效果。

AIM to set up the experimental model of canine thoracic cavity gunshot wounds, and to explore the causes of early death and the effects of early rescue.

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前者的致死作用略低于后者，而对家蝇的击倒效果却优于后者。

Their killing effect is slightly lower while the knockdown effect against housefly is even better.

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